It is very important to note that frog jumps need a smooth and hazardous free surface. This is to protect the person doing the frog jumps from injuries.
Here are steps to be followed: in a sitting position put your hands behind your hips, leaping like a frog, swing your arms forwarded up and jump forward as far as you can and at the same time straight the entire body especially, the knees, elbows, fingers and toes.
Sit down while you strike out your arms another time. Continue jumping to the next frog jump without major stops.
Also note that landing the jump frogs on your heels is bad for your knees yet this is when your jumps go further and become more intense.
Sitting too far with relaxed quads is also bad for the knees, but landing on your toes protects the joints. At least 15 jumps should be done in a row for one to benefit both physically and internally.